EPR of some irradiated renal stones

Koseoglu R. , Koseoglu E. , Koksal F. , Basaran E., Demirci D.

RADIATION MEASUREMENTS, cilt.40, ss.65-68, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 40 Konu: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.radmeas.2004.12.015
  • Sayfa Sayıları: ss.65-68


Some renal stones were investigated by electron paramagnetic resonance of their untreated, UV-photolyzed and gamma-irradiated states. Powder X-ray diffraction technique indicated that the renal stones were made mainly from CaC2O4, MgC2O4, MgCO3 and NH4MgPO4 - 6H(2)O. Before radiation treatment, the renal stones yielded a signal that could be attributed to a C2O4- radical. UV-photolysis seems to slightly increase the intensity of this signal, but does not produce any new centres. Gamma-irradiation initially gives -CH2C(CH3)-R and CO2- radicals, and while the intensity of the -CH2C(CH3) R signal decreases, the intensity of the CO2- signal increases as time elapses. (c) 2004 Elsevier Ltd. All rights reserved.